Evaluation of Effectiveness and Tolerability of Tapentadol Hydrochloride in Subjects With Severe Chronic Low Back Pain Taking WHO Step III Analgesics But Showing a Lack of Tolerability
Summary
The registered summary isn't in our current data snapshot. Read it on the ClinicalTrials.gov record ↗. Why? →
Investigators
The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.
- Michael Schäfer, Prof. MD
Charité University Berlin, Campus Virchow Klinikum
Principal Investigator
A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.
Sites
27 registered facilities, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.
- Be004
Bruges, Belgium
- Be003
Charleroi, Belgium
- Be002
Edegem, Belgium
- Be001
Liège, Belgium
- Cz001
Brno, Czechia
- Fr004
Thionville, France
- Fr001
Toulouse, France
- De005
Albstadt, Germany
- De001
Berlin, Germany
- De003
Berlin, Germany
- De006
Kiel, Germany
- De004
Leipzig, Germany
- De008
Leipzig, Germany
- De007
Stuttgart, Germany
- Nl002
Alkmaar, Netherlands
- Nl004
Doetinchem, Netherlands
- Nl003
Eindhoven, Netherlands
- Nl001
Tiel, Netherlands
- Pl002
Krakow, Poland
- Pl001
Poznan, Poland
- Es006
Cadiz, Spain
- Es001
Granada, Spain
- Es003
Málaga, Spain
- Es004
Seville, Spain
- Es005
Valencia, Spain
- Ch001
Basel, Switzerland
- Ch002
Sankt Gallen, Switzerland
Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.
Drugs studied
No drug or biological interventions are in our data for this study — it may test a procedure, device or behavioral intervention, or the intervention list isn't in our current snapshot. See the registry record ↗. Why? →
Registration & key dates
Registry attributes as recorded on the ClinicalTrials.gov study record.
- Start
- 30 Oct 2009
- Primary completion
- 31 Dec 2010
- Completion
- 31 Jan 2011
- Last update posted
- 9 Jan 2019
- Registered enrollment
- 136
- Registry id
- NCT00986258
Cross-registrations
Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 12 Jul 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.